Finding the Fourth Proportional to 155,434.49, 214,507.49 and 91,770.92
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Solution
The fourth proportional to 155,434.49, 214,507.49 and 91,770.92 is: 126,648.53
Step by Step Solution
- Step 1: Write the proportion equation
155,434.49 : 214,507.49 = 91,770.92 : x - Step 2: Convert to fraction form
155,434.49/214,507.49 = 91,770.92/x - Step 3: Cross multiply
155,434.49x = 214,507.49 × 91,770.92 - Step 4: Simplify right side
155,434.49x = 19,685,549,704.19 - Step 5: Solve for x
x = 19,685,549,704.19/155,434.49 - Step 6: Final answer
x = 126,648.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.